[ViewVC] Diff of: cvs/Coro/Coro/State.xs

Comparing Coro/Coro/State.xs (file contents):
Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs.
Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC

…		…
		1	#define PERL_NO_GET_CONTEXT
		2
1	#include "EXTERN.h"	3	#include "EXTERN.h"
2	#include "perl.h"	4	#include "perl.h"
3	#include "XSUB.h"	5	#include "XSUB.h"
4		6
		7	#include "patchlevel.h"
		8
		9	#if PATCHLEVEL < 6
		10	# ifndef PL_ppaddr
		11	# define PL_ppaddr ppaddr
		12	# endif
		13	# ifndef call_sv
		14	# define call_sv perl_call_sv
		15	# endif
		16	# ifndef get_sv
		17	# define get_sv perl_get_sv
		18	# endif
		19	# ifndef get_cv
		20	# define get_cv perl_get_cv
		21	# endif
		22	# ifndef IS_PADGV
		23	# define IS_PADGV(v) 0
		24	# endif
		25	# ifndef IS_PADCONST
		26	# define IS_PADCONST(v) 0
		27	# endif
		28	#endif
		29
5	#include "libcoro/coro.c"	30	#include "libcoro/coro.c"
		31
		32	#include <signal.h>
6		33
7	#ifdef HAVE_MMAP	34	#ifdef HAVE_MMAP
8	# include <unistd.h>	35	# include <unistd.h>
9	# include <sys/mman.h>	36	# include <sys/mman.h>
10	# ifndef MAP_ANON
11	# ifdef MAP_ANONYMOUS	37	# ifndef MAP_ANONYMOUS
12	# define MAP_ANON MAP_ANONYMOUS	38	# ifdef MAP_ANON
		39	# define MAP_ANONYMOUS MAP_ANON
13	# else	40	# else
14	# undef HAVE_MMAP	41	# undef HAVE_MMAP
15	# endif	42	# endif
16	# endif	43	# endif
17	#endif	44	#endif
18		45
19	#define MAY_FLUSH /* increases codesize */
20
21	/* perl-related */
22	#define TRANSFER_SAVE_DEFAV 0x00000001
23	#define TRANSFER_SAVE_DEFSV 0x00000002
24	#define TRANSFER_SAVE_ERRSV 0x00000004
25	/* c-related */
26	#define TRANSFER_SAVE_CCTXT 0x00000008
27	#ifdef CORO_LAZY_STACK
28	# define TRANSFER_LAZY_STACK 0x00000010
29	#else
30	# define TRANSFER_LAZY_STACK 0x00000000
31	#endif
32
33	#define TRANSFER_SAVE_ALL (TRANSFER_SAVE_DEFAV\|TRANSFER_SAVE_DEFSV \
34	\|TRANSFER_SAVE_ERRSV\|TRANSFER_SAVE_CCTXT)
35
36	#define SUB_INIT "Coro::State::initialize"	46	#define SUB_INIT "Coro::State::initialize"
37	#define UCORO_STATE "_coro_state"	47	#define UCORO_STATE "_coro_state"
38		48
39	/* The next macro should delcare a variable stacklevel that contains and approximation	49	/* The next macro should declare a variable stacklevel that contains and approximation
40	* to the current C stack pointer. It's property is that it changes with each call	50	* to the current C stack pointer. Its property is that it changes with each call
41	* and should be unique. */	51	* and should be unique. */
42	#define dSTACKLEVEL void *stacklevel = &stacklevel	52	#define dSTACKLEVEL void *stacklevel = &stacklevel
43		53
		54	#define IN_DESTRUCT (PL_main_cv == Nullcv)
		55
44	#define labs(l) ((l) >= 0 ? (l) : -(l))	56	#define labs(l) ((l) >= 0 ? (l) : -(l))
		57
		58	#include "CoroAPI.h"
		59
		60	#ifdef USE_ITHREADS
		61	static perl_mutex coro_mutex;
		62	# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0)
		63	# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0)
		64	#else
		65	# define LOCK 0
		66	# define UNLOCK 0
		67	#endif
		68
		69	static struct CoroAPI coroapi;
		70	static AV main_mainstack; / used to differentiate between $main and others */
		71	static HV *coro_state_stash;
		72	static SV *ucoro_state_sv;
		73	static U32 ucoro_state_hash;
		74	static SV coro_mortal; / will be freed after next transfer */
45		75
46	/* this is actually not only the c stack but also c registers etc... */	76	/* this is actually not only the c stack but also c registers etc... */
47	typedef struct {	77	typedef struct {
48	int refcnt; /* pointer reference counter */	78	int refcnt; /* pointer reference counter */
49	int usecnt; /* shared by how many coroutines */	79	int usecnt; /* shared by how many coroutines */
54	void *sptr;	84	void *sptr;
55	long ssize; /* positive == mmap, otherwise malloc */	85	long ssize; /* positive == mmap, otherwise malloc */
56	} coro_stack;	86	} coro_stack;
57		87
58	struct coro {	88	struct coro {
		89	/* the top-level JMPENV for each coroutine, needed to catch dies. */
		90	JMPENV start_env;
		91
59	/* the optional C context */	92	/* the optional C context */
60	coro_stack *stack;	93	coro_stack *stack;
61	void *cursp;	94	void *cursp;
62	int gencnt;	95	int gencnt;
63		96
…		…
66	SV *defsv;	99	SV *defsv;
67	SV *errsv;	100	SV *errsv;
68		101
69	/* saved global state not related to stacks */	102	/* saved global state not related to stacks */
70	U8 dowarn;	103	U8 dowarn;
		104	I32 in_eval;
71		105
72	/* the stacks and related info (callchain etc..) */	106	/* the stacks and related info (callchain etc..) */
73	PERL_SI *curstackinfo;	107	PERL_SI *curstackinfo;
74	AV *curstack;	108	AV *curstack;
75	AV *mainstack;	109	AV *mainstack;
76	SV **stack_sp;	110	SV **stack_sp;
77	OP *op;	111	OP *op;
78	SV **curpad;	112	SV **curpad;
		113	AV *comppad;
		114	CV *compcv;
79	SV **stack_base;	115	SV **stack_base;
80	SV **stack_max;	116	SV **stack_max;
81	SV **tmps_stack;	117	SV **tmps_stack;
82	I32 tmps_floor;	118	I32 tmps_floor;
83	I32 tmps_ix;	119	I32 tmps_ix;
…		…
93	I32 savestack_max;	129	I32 savestack_max;
94	OP **retstack;	130	OP **retstack;
95	I32 retstack_ix;	131	I32 retstack_ix;
96	I32 retstack_max;	132	I32 retstack_max;
97	COP *curcop;	133	COP *curcop;
98	JMPENV start_env;
99	JMPENV *top_env;	134	JMPENV *top_env;
100		135
101	/* data associated with this coroutine (initial args) */	136	/* data associated with this coroutine (initial args) */
102	AV *args;	137	AV *args;
103	};	138	};
104		139
105	typedef struct coro *Coro__State;	140	typedef struct coro *Coro__State;
106	typedef struct coro *Coro__State_or_hashref;	141	typedef struct coro *Coro__State_or_hashref;
107		142
108	static AV main_mainstack; / used to differentiate between $main and others */
109	static HV *coro_state_stash;
110	static SV *ucoro_state_sv;
111	static U32 ucoro_state_hash;
112	static HV *padlist_cache;
113
114	/* mostly copied from op.c:cv_clone2 */	143	/* mostly copied from op.c:cv_clone2 */
115	STATIC AV *	144	STATIC AV *
116	clone_padlist (AV *protopadlist)	145	clone_padlist (pTHX_ AV *protopadlist)
117	{	146	{
118	AV *av;	147	AV *av;
119	I32 ix;	148	I32 ix;
120	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);	149	AV protopad_name = (AV ) * av_fetch (protopadlist, 0, FALSE);
121	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);	150	AV protopad = (AV ) * av_fetch (protopadlist, 1, FALSE);
…		…
145	AvFLAGS (av) = AVf_REIFY;	174	AvFLAGS (av) = AVf_REIFY;
146		175
147	for (ix = fpad; ix > 0; ix--)	176	for (ix = fpad; ix > 0; ix--)
148	{	177	{
149	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;	178	SV *namesv = (ix <= fname) ? pname[ix] : Nullsv;
		179
150	if (namesv && namesv != &PL_sv_undef)	180	if (namesv && namesv != &PL_sv_undef)
151	{	181	{
152	char name = SvPVX (namesv); / XXX */	182	char name = SvPVX (namesv); / XXX */
		183
153	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')	184	if (SvFLAGS (namesv) & SVf_FAKE \|\| *name == '&')
154	{ /* lexical from outside? */	185	{ /* lexical from outside? */
155	npad[ix] = SvREFCNT_inc (ppad[ix]);	186	npad[ix] = SvREFCNT_inc (ppad[ix]);
156	}	187	}
157	else	188	else
…		…
163	sv = (SV *) newAV ();	194	sv = (SV *) newAV ();
164	else if (*name == '%')	195	else if (*name == '%')
165	sv = (SV *) newHV ();	196	sv = (SV *) newHV ();
166	else	197	else
167	sv = NEWSV (0, 0);	198	sv = NEWSV (0, 0);
		199
		200	#ifdef SvPADBUSY
168	if (!SvPADBUSY (sv))	201	if (!SvPADBUSY (sv))
		202	#endif
169	SvPADMY_on (sv);	203	SvPADMY_on (sv);
		204
170	npad[ix] = sv;	205	npad[ix] = sv;
171	}	206	}
172	}	207	}
173	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))	208	else if (IS_PADGV (ppad[ix]) \|\| IS_PADCONST (ppad[ix]))
174	{	209	{
…		…
203	#endif	238	#endif
204		239
205	return newpadlist;	240	return newpadlist;
206	}	241	}
207		242
208	#ifdef MAY_FLUSH	243	STATIC void
209	STATIC AV *
210	free_padlist (AV *padlist)	244	free_padlist (pTHX_ AV *padlist)
211	{	245	{
212	/* may be during global destruction */	246	/* may be during global destruction */
213	if (SvREFCNT(padlist))	247	if (SvREFCNT (padlist))
214	{	248	{
215	I32 i = AvFILLp(padlist);	249	I32 i = AvFILLp (padlist);
216	while (i >= 0)	250	while (i >= 0)
217	{	251	{
218	SV **svp = av_fetch(padlist, i--, FALSE);	252	SV **svp = av_fetch (padlist, i--, FALSE);
219	SV sv = svp ? svp : Nullsv;
220	if (sv)	253	if (svp)
		254	{
		255	SV *sv;
		256	while (&PL_sv_undef != (sv = av_pop ((AV )svp)))
221	SvREFCNT_dec(sv);	257	SvREFCNT_dec (sv);
		258
		259	SvREFCNT_dec (*svp);
		260	}
222	}	261	}
223		262
224	SvREFCNT_dec((SV*)padlist);	263	SvREFCNT_dec ((SV*)padlist);
225	}	264	}
226	}	265	}
227	#endif	266
		267	STATIC int
		268	coro_cv_free (pTHX_ SV sv, MAGIC mg)
		269	{
		270	AV *padlist;
		271	AV av = (AV )mg->mg_obj;
		272
		273	/* casting is fun. */
		274	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
		275	free_padlist (aTHX_ padlist);
		276
		277	SvREFCNT_dec (av);
		278	}
		279
		280	#define PERL_MAGIC_coro PERL_MAGIC_ext
		281
		282	static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free};
228		283
229	/* the next two functions merely cache the padlists */	284	/* the next two functions merely cache the padlists */
230	STATIC void	285	STATIC void
231	get_padlist (CV *cv)	286	get_padlist (pTHX_ CV *cv)
232	{	287	{
233	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 0);	288	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
234		289
235	if (he && AvFILLp ((AV )he) >= 0)	290	if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0)
236	CvPADLIST (cv) = (AV )av_pop ((AV )*he);	291	CvPADLIST (cv) = (AV )av_pop ((AV )mg->mg_obj);
237	else	292	else
238	CvPADLIST (cv) = clone_padlist (CvPADLIST (cv));	293	CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv));
239	}	294	}
240		295
241	STATIC void	296	STATIC void
242	put_padlist (CV *cv)	297	put_padlist (pTHX_ CV *cv)
243	{	298	{
244	SV *he = hv_fetch (padlist_cache, (void )&cv, sizeof (CV *), 1);	299	MAGIC mg = mg_find ((SV )cv, PERL_MAGIC_coro);
245		300
246	if (SvTYPE (*he) != SVt_PVAV)	301	if (!mg)
247	{	302	{
248	SvREFCNT_dec (*he);	303	sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0);
		304	mg = mg_find ((SV *)cv, PERL_MAGIC_coro);
		305	mg->mg_virtual = &vtbl_coro;
249	he = (SV )newAV ();	306	mg->mg_obj = (SV *)newAV ();
250	}	307	}
251		308
252	av_push ((AV )he, (SV *)CvPADLIST (cv));	309	av_push ((AV )mg->mg_obj, (SV )CvPADLIST (cv));
253	}	310	}
254
255	#ifdef MAY_FLUSH
256	STATIC void
257	flush_padlist_cache ()
258	{
259	HV *hv = padlist_cache;
260	padlist_cache = newHV ();
261
262	if (hv_iterinit (hv))
263	{
264	HE *he;
265	AV *padlist;
266
267	while (!!(he = hv_iternext (hv)))
268	{
269	AV av = (AV )HeVAL(he);
270
271	/* casting is fun. */
272	while (&PL_sv_undef != (SV )(padlist = (AV )av_pop (av)))
273	free_padlist (padlist);
274	}
275	}
276
277	SvREFCNT_dec (hv);
278	}
279	#endif
280		311
281	#define SB do {	312	#define SB do {
282	#define SE } while (0)	313	#define SE } while (0)
283		314
284	#define LOAD(state) SB load_state(aTHX_ (state)); SPAGAIN; SE	315	#define LOAD(state) load_state(aTHX_ (state));
285	#define SAVE(state,flags) SB PUTBACK; save_state(aTHX_ (state),(flags)); SE	316	#define SAVE(state,flags) save_state(aTHX_ (state),(flags));
286		317
287	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE	318	#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE
288		319
289	static void	320	static void
290	load_state(pTHX_ Coro__State c)	321	load_state(pTHX_ Coro__State c)
291	{	322	{
292	PL_dowarn = c->dowarn;	323	PL_dowarn = c->dowarn;
		324	PL_in_eval = c->in_eval;
293		325
294	PL_curstackinfo = c->curstackinfo;	326	PL_curstackinfo = c->curstackinfo;
295	PL_curstack = c->curstack;	327	PL_curstack = c->curstack;
296	PL_mainstack = c->mainstack;	328	PL_mainstack = c->mainstack;
297	PL_stack_sp = c->stack_sp;	329	PL_stack_sp = c->stack_sp;
298	PL_op = c->op;	330	PL_op = c->op;
299	PL_curpad = c->curpad;	331	PL_curpad = c->curpad;
		332	PL_comppad = c->comppad;
		333	PL_compcv = c->compcv;
300	PL_stack_base = c->stack_base;	334	PL_stack_base = c->stack_base;
301	PL_stack_max = c->stack_max;	335	PL_stack_max = c->stack_max;
302	PL_tmps_stack = c->tmps_stack;	336	PL_tmps_stack = c->tmps_stack;
303	PL_tmps_floor = c->tmps_floor;	337	PL_tmps_floor = c->tmps_floor;
304	PL_tmps_ix = c->tmps_ix;	338	PL_tmps_ix = c->tmps_ix;
…		…
314	PL_savestack_max = c->savestack_max;	348	PL_savestack_max = c->savestack_max;
315	PL_retstack = c->retstack;	349	PL_retstack = c->retstack;
316	PL_retstack_ix = c->retstack_ix;	350	PL_retstack_ix = c->retstack_ix;
317	PL_retstack_max = c->retstack_max;	351	PL_retstack_max = c->retstack_max;
318	PL_curcop = c->curcop;	352	PL_curcop = c->curcop;
319	PL_start_env = c->start_env;
320	PL_top_env = c->top_env;	353	PL_top_env = c->top_env;
321		354
322	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);	355	if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav);
323	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);	356	if (c->defsv) REPLACE_SV (DEFSV , c->defsv);
324	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);	357	if (c->errsv) REPLACE_SV (ERRSV , c->errsv);
…		…
332	{	365	{
333	AV padlist = (AV )POPs;	366	AV padlist = (AV )POPs;
334		367
335	if (padlist)	368	if (padlist)
336	{	369	{
337	put_padlist (cv); /* mark this padlist as available */	370	put_padlist (aTHX_ cv); /* mark this padlist as available */
338	CvPADLIST(cv) = padlist;	371	CvPADLIST(cv) = padlist;
339	#ifdef USE_THREADS
340	/CvOWNER(cv) = (struct perl_thread )POPs;*/
341	#endif
342	}	372	}
343		373
344	++CvDEPTH(cv);	374	++CvDEPTH(cv);
345	}	375	}
346		376
…		…
364		394
365	PUSHs (Nullsv);	395	PUSHs (Nullsv);
366	/* this loop was inspired by pp_caller */	396	/* this loop was inspired by pp_caller */
367	for (;;)	397	for (;;)
368	{	398	{
369	do	399	while (cxix >= 0)
370	{	400	{
371	PERL_CONTEXT *cx = &ccstk[cxix--];	401	PERL_CONTEXT *cx = &ccstk[cxix--];
372		402
373	if (CxTYPE(cx) == CXt_SUB)	403	if (CxTYPE(cx) == CXt_SUB)
374	{	404	{
375	CV *cv = cx->blk_sub.cv;	405	CV *cv = cx->blk_sub.cv;
376	if (CvDEPTH(cv))	406	if (CvDEPTH(cv))
377	{	407	{
378	#ifdef USE_THREADS
379	/XPUSHs ((SV )CvOWNER(cv));*/
380	/CvOWNER(cv) = 0;/
381	/error must unlock this cv etc.. etc.../
382	#endif
383	EXTEND (SP, CvDEPTH(cv)*2);	408	EXTEND (SP, CvDEPTH(cv)*2);
384		409
385	while (--CvDEPTH(cv))	410	while (--CvDEPTH(cv))
386	{	411	{
387	/* this tells the restore code to increment CvDEPTH */	412	/* this tells the restore code to increment CvDEPTH */
…		…
390	}	415	}
391		416
392	PUSHs ((SV *)CvPADLIST(cv));	417	PUSHs ((SV *)CvPADLIST(cv));
393	PUSHs ((SV *)cv);	418	PUSHs ((SV *)cv);
394		419
395	get_padlist (cv); /* this is a monster */	420	get_padlist (aTHX_ cv); /* this is a monster */
396	}	421	}
397	}	422	}
		423	#ifdef CXt_FORMAT
398	else if (CxTYPE(cx) == CXt_FORMAT)	424	else if (CxTYPE(cx) == CXt_FORMAT)
399	{	425	{
400	/* I never used formats, so how should I know how these are implemented? */	426	/* I never used formats, so how should I know how these are implemented? */
401	/* my bold guess is as a simple, plain sub... */	427	/* my bold guess is as a simple, plain sub... */
402	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");	428	croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats");
403	}	429	}
		430	#endif
404	}	431	}
405	while (cxix >= 0);
406		432
407	if (top_si->si_type == PERLSI_MAIN)	433	if (top_si->si_type == PERLSI_MAIN)
408	break;	434	break;
409		435
410	top_si = top_si->si_prev;	436	top_si = top_si->si_prev;
…		…
417		443
418	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;	444	c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0;
419	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;	445	c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0;
420	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;	446	c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0;
421		447
422	/* I have not the slightest idea of why av_reify is necessary */
423	/* but if it's missing the defav contents magically get replaced sometimes */
424	if (c->defav)
425	av_reify (c->defav);
426
427	c->dowarn = PL_dowarn;	448	c->dowarn = PL_dowarn;
		449	c->in_eval = PL_in_eval;
428		450
429	c->curstackinfo = PL_curstackinfo;	451	c->curstackinfo = PL_curstackinfo;
430	c->curstack = PL_curstack;	452	c->curstack = PL_curstack;
431	c->mainstack = PL_mainstack;	453	c->mainstack = PL_mainstack;
432	c->stack_sp = PL_stack_sp;	454	c->stack_sp = PL_stack_sp;
433	c->op = PL_op;	455	c->op = PL_op;
434	c->curpad = PL_curpad;	456	c->curpad = PL_curpad;
		457	c->comppad = PL_comppad;
		458	c->compcv = PL_compcv;
435	c->stack_base = PL_stack_base;	459	c->stack_base = PL_stack_base;
436	c->stack_max = PL_stack_max;	460	c->stack_max = PL_stack_max;
437	c->tmps_stack = PL_tmps_stack;	461	c->tmps_stack = PL_tmps_stack;
438	c->tmps_floor = PL_tmps_floor;	462	c->tmps_floor = PL_tmps_floor;
439	c->tmps_ix = PL_tmps_ix;	463	c->tmps_ix = PL_tmps_ix;
…		…
449	c->savestack_max = PL_savestack_max;	473	c->savestack_max = PL_savestack_max;
450	c->retstack = PL_retstack;	474	c->retstack = PL_retstack;
451	c->retstack_ix = PL_retstack_ix;	475	c->retstack_ix = PL_retstack_ix;
452	c->retstack_max = PL_retstack_max;	476	c->retstack_max = PL_retstack_max;
453	c->curcop = PL_curcop;	477	c->curcop = PL_curcop;
454	c->start_env = PL_start_env;
455	c->top_env = PL_top_env;	478	c->top_env = PL_top_env;
456	}	479	}
457		480
458	/*	481	/*
459	* allocate various perl stacks. This is an exact copy	482	* allocate various perl stacks. This is an exact copy
460	* of perl.c:init_stacks, except that it uses less memory	483	* of perl.c:init_stacks, except that it uses less memory
461	* on the assumption that coroutines do not usually need	484	* on the (sometimes correct) assumption that coroutines do
462	* a lot of stackspace.	485	* not usually need a lot of stackspace.
463	*/	486	*/
464	STATIC void	487	STATIC void
465	coro_init_stacks (pTHX)	488	coro_init_stacks (pTHX)
466	{	489	{
		490	LOCK;
		491
467	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);	492	PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1);
468	PL_curstackinfo->si_type = PERLSI_MAIN;	493	PL_curstackinfo->si_type = PERLSI_MAIN;
469	PL_curstack = PL_curstackinfo->si_stack;	494	PL_curstack = PL_curstackinfo->si_stack;
470	PL_mainstack = PL_curstack; /* remember in case we switch stacks */	495	PL_mainstack = PL_curstack; /* remember in case we switch stacks */
471		496
…		…
480		505
481	New(54,PL_markstack,16,I32);	506	New(54,PL_markstack,16,I32);
482	PL_markstack_ptr = PL_markstack;	507	PL_markstack_ptr = PL_markstack;
483	PL_markstack_max = PL_markstack + 16;	508	PL_markstack_max = PL_markstack + 16;
484		509
		510	#ifdef SET_MARK_OFFSET
485	SET_MARK_OFFSET;	511	SET_MARK_OFFSET;
		512	#endif
486		513
487	New(54,PL_scopestack,16,I32);	514	New(54,PL_scopestack,16,I32);
488	PL_scopestack_ix = 0;	515	PL_scopestack_ix = 0;
489	PL_scopestack_max = 16;	516	PL_scopestack_max = 16;
490		517
…		…
493	PL_savestack_max = 96;	520	PL_savestack_max = 96;
494		521
495	New(54,PL_retstack,8,OP*);	522	New(54,PL_retstack,8,OP*);
496	PL_retstack_ix = 0;	523	PL_retstack_ix = 0;
497	PL_retstack_max = 8;	524	PL_retstack_max = 8;
		525
		526	UNLOCK;
498	}	527	}
499		528
500	/*	529	/*
501	* destroy the stacks, the callchain etc...	530	* destroy the stacks, the callchain etc...
502	* still there is a memleak of 128 bytes...
503	*/	531	*/
504	STATIC void	532	STATIC void
505	destroy_stacks(pTHX)	533	destroy_stacks(pTHX)
506	{	534	{
		535	if (!IN_DESTRUCT)
		536	{
507	/* is this ugly, I ask? */	537	/* is this ugly, I ask? */
508	while (PL_scopestack_ix)	538	LEAVE_SCOPE (0);
509	LEAVE;
510		539
511	/* sure it is, but more important: is it correct?? :/ */	540	/* sure it is, but more important: is it correct?? :/ */
512	while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */
513	FREETMPS;	541	FREETMPS;
		542
		543	/POPSTACK_TO (PL_mainstack);//D//use/
		544	}
514		545
515	while (PL_curstackinfo->si_next)	546	while (PL_curstackinfo->si_next)
516	PL_curstackinfo = PL_curstackinfo->si_next;	547	PL_curstackinfo = PL_curstackinfo->si_next;
517		548
518	while (PL_curstackinfo)	549	while (PL_curstackinfo)
519	{	550	{
520	PERL_SI *p = PL_curstackinfo->si_prev;	551	PERL_SI *p = PL_curstackinfo->si_prev;
521		552
522	{	553	{ /D//remove/
523	dSP;	554	dSP;
524	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);	555	SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack);
525	PUTBACK; /* possibly superfluous */	556	PUTBACK; /* possibly superfluous */
526	}	557	}
527		558
528	dounwind(-1);	559	if (!IN_DESTRUCT)
529		560	{
		561	dounwind (-1);/D//remove/
530	SvREFCNT_dec(PL_curstackinfo->si_stack);	562	SvREFCNT_dec (PL_curstackinfo->si_stack);
		563	}
		564
531	Safefree(PL_curstackinfo->si_cxstack);	565	Safefree (PL_curstackinfo->si_cxstack);
532	Safefree(PL_curstackinfo);	566	Safefree (PL_curstackinfo);
533	PL_curstackinfo = p;	567	PL_curstackinfo = p;
534	}	568	}
535		569
536	Safefree(PL_tmps_stack);	570	Safefree (PL_tmps_stack);
537	Safefree(PL_markstack);	571	Safefree (PL_markstack);
538	Safefree(PL_scopestack);	572	Safefree (PL_scopestack);
539	Safefree(PL_savestack);	573	Safefree (PL_savestack);
540	Safefree(PL_retstack);	574	Safefree (PL_retstack);
541	}	575	}
542		576
543	static void	577	static void
544	allocate_stack (Coro__State ctx, int alloc)	578	allocate_stack (Coro__State ctx, int alloc)
545	{	579	{
…		…
548	New (0, stack, 1, coro_stack);	582	New (0, stack, 1, coro_stack);
549		583
550	stack->refcnt = 1;	584	stack->refcnt = 1;
551	stack->usecnt = 1;	585	stack->usecnt = 1;
552	stack->gencnt = ctx->gencnt = 0;	586	stack->gencnt = ctx->gencnt = 0;
		587
553	if (alloc)	588	if (alloc)
554	{	589	{
555	#ifdef HAVE_MMAP	590	#if HAVE_MMAP
556	stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */	591	stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */
557	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANON, 0, 0);	592	stack->sptr = mmap (0, stack->ssize, PROT_EXEC\|PROT_READ\|PROT_WRITE, MAP_PRIVATE\|MAP_ANONYMOUS, 0, 0);
558	if (stack->sptr == (void *)-1)	593	if (stack->sptr == (void *)-1)
559	#endif	594	#endif
560	{	595	{
561	/FIXME//D//* reasonable stack size! */	596	/FIXME//D//* reasonable stack size! */
562	stack->ssize = -4096 * sizeof (long);	597	stack->ssize = - (8192 * sizeof (long));
563	New (0, stack->sptr, 4096, long);	598	New (0, stack->sptr, 8192, long);
564	}	599	}
565	}	600	}
566	else	601	else
567	stack->sptr = 0;	602	stack->sptr = 0;
568		603
…		…
582	{	617	{
583	#ifdef HAVE_MMAP	618	#ifdef HAVE_MMAP
584	if (stack->ssize > 0 && stack->sptr)	619	if (stack->ssize > 0 && stack->sptr)
585	munmap (stack->sptr, stack->ssize);	620	munmap (stack->sptr, stack->ssize);
586	else	621	else
587	#else	622	#endif
588	Safefree (stack->sptr);	623	Safefree (stack->sptr);
589	#endif	624
590	Safefree (stack);	625	Safefree (stack);
591	}	626	}
592	else if (ctx->gencnt == stack->gencnt)	627	else if (ctx->gencnt == stack->gencnt)
593	--stack->usecnt;	628	--stack->usecnt;
594	}	629	}
…		…
598	setup_coro (void *arg)	633	setup_coro (void *arg)
599	{	634	{
600	/*	635	/*
601	* emulate part of the perl startup here.	636	* emulate part of the perl startup here.
602	*/	637	*/
		638	dTHX;
603	dSP;	639	dSP;
604	Coro__State ctx = (Coro__State)arg;	640	Coro__State ctx = (Coro__State)arg;
605	SV sub_init = (SV)get_cv(SUB_INIT, FALSE);	641	SV sub_init = (SV )get_cv (SUB_INIT, FALSE);
606		642
607	coro_init_stacks (aTHX);	643	coro_init_stacks (aTHX);
608	JMPENV_BOOTSTRAP;	644	/PL_curcop = 0;/
		645	/PL_in_eval = PL_in_eval;/ /* inherit */
		646	SvREFCNT_dec (GvAV (PL_defgv));
		647	GvAV (PL_defgv) = ctx->args; ctx->args = 0;
		648
609	SPAGAIN;	649	SPAGAIN;
610
611	/PL_curcop = 0;/
612	SvREFCNT_dec (GvAV (PL_defgv));
613	GvAV (PL_defgv) = ctx->args;
614		650
615	if (ctx->stack)	651	if (ctx->stack)
616	{	652	{
617	ctx->cursp = 0;	653	ctx->cursp = 0;
618		654
619	PUSHMARK(SP);	655	PUSHMARK(SP);
620	PUTBACK;	656	PUTBACK;
621	(void) call_sv (sub_init, G_VOID\|G_NOARGS);	657	(void) call_sv (sub_init, G_VOID\|G_NOARGS\|G_EVAL);
		658
		659	if (SvTRUE (ERRSV))
		660	croak (NULL);
		661	else
622	croak ("FATAL: CCTXT coroutine returned!");	662	croak ("FATAL: CCTXT coroutine returned!");
623	}	663	}
624	else	664	else
625	{	665	{
626	UNOP myop;	666	UNOP myop;
627		667
…		…
639	* that doesn't matter, though, since it is only	679	* that doesn't matter, though, since it is only
640	* pp_nextstate and we never return...	680	* pp_nextstate and we never return...
641	* ah yes, and I don't care anyways ;)	681	* ah yes, and I don't care anyways ;)
642	*/	682	*/
643	PUTBACK;	683	PUTBACK;
644	PL_op = pp_entersub();	684	PL_op = PL_ppaddr[OP_ENTERSUB](aTHX);
645	SPAGAIN;	685	SPAGAIN;
646		686
647	ENTER; /* necessary e.g. for dounwind */	687	ENTER; /* necessary e.g. for dounwind */
648	}	688	}
649	}	689	}
…		…
652	continue_coro (void *arg)	692	continue_coro (void *arg)
653	{	693	{
654	/*	694	/*
655	* this is a _very_ stripped down perl interpreter ;)	695	* this is a _very_ stripped down perl interpreter ;)
656	*/	696	*/
		697	dTHX;
657	Coro__State ctx = (Coro__State)arg;	698	Coro__State ctx = (Coro__State)arg;
		699	JMPENV coro_start_env;
		700
		701	PL_top_env = &ctx->start_env;
658		702
659	ctx->cursp = 0;	703	ctx->cursp = 0;
660	PL_op = PL_op->op_next;	704	PL_op = PL_op->op_next;
661	CALLRUNOPS(aTHX);	705	CALLRUNOPS(aTHX);
662	/NORETURN/	706
663	abort ();	707	abort ();
664	}	708	}
665		709
666	STATIC void	710	STATIC void
667	transfer(pTHX_ struct coro prev, struct coro next, int flags)	711	transfer (pTHX_ struct coro prev, struct coro next, int flags)
668	{	712	{
669	dSP;
670	dSTACKLEVEL;	713	dSTACKLEVEL;
671		714
672	if (prev != next)	715	if (prev != next)
673	{	716	{
674	if (next->mainstack)	717	if (next->mainstack)
675	{	718	{
		719	LOCK;
676	SAVE (prev, flags);	720	SAVE (prev, flags);
677	LOAD (next);	721	LOAD (next);
		722	UNLOCK;
678		723
679	/* mark this state as in-use */	724	/* mark this state as in-use */
680	next->mainstack = 0;	725	next->mainstack = 0;
681	next->tmps_ix = -2;	726	next->tmps_ix = -2;
682		727
…		…
701	continue_coro, (void *)next,	746	continue_coro, (void *)next,
702	next->stack->sptr, labs (next->stack->ssize));	747	next->stack->sptr, labs (next->stack->ssize));
703	}	748	}
704		749
705	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	750	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		751	prev->cursp = stacklevel;
		752	/* don't add any code here */
706	}	753	}
707		754	else
		755	next->cursp = stacklevel;
708	}	756	}
709	else if (next->tmps_ix == -2)	757	else if (next->tmps_ix == -2)
710	croak ("tried to transfer to running coroutine");	758	croak ("tried to transfer to running coroutine");
711	else	759	else
712	{	760	{
		761	LOCK;
713	SAVE (prev, -1); /* first get rid of the old state */	762	SAVE (prev, -1); /* first get rid of the old state */
		763	UNLOCK;
714		764
715	if (flags & TRANSFER_SAVE_CCTXT)	765	if (flags & TRANSFER_SAVE_CCTXT)
716	{	766	{
717	if (!prev->stack)	767	if (!prev->stack)
718	allocate_stack (prev, 0);	768	allocate_stack (prev, 0);
719		769
720	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)	770	if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK)
721	{	771	{
		772	PL_top_env = &next->start_env;
		773
722	setup_coro (next);	774	setup_coro (next);
		775	next->cursp = stacklevel;
723		776
724	prev->stack->refcnt++;	777	prev->stack->refcnt++;
725	prev->stack->usecnt++;	778	prev->stack->usecnt++;
726	next->stack = prev->stack;	779	next->stack = prev->stack;
727	next->gencnt = prev->gencnt;	780	next->gencnt = prev->gencnt;
728	}	781	}
729	else	782	else
730	{	783	{
		784	assert (!next->stack);
731	allocate_stack (next, 1);	785	allocate_stack (next, 1);
732	coro_create (&(next->stack->cctx),	786	coro_create (&(next->stack->cctx),
733	setup_coro, (void *)next,	787	setup_coro, (void *)next,
734	next->stack->sptr, labs (next->stack->ssize));	788	next->stack->sptr, labs (next->stack->ssize));
735	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));	789	coro_transfer (&(prev->stack->cctx), &(next->stack->cctx));
		790	prev->cursp = stacklevel;
		791	/* don't add any code here */
736	}	792	}
737	}	793	}
738	else	794	else
		795	{
739	setup_coro (next);	796	setup_coro (next);
		797	next->cursp = stacklevel;
		798	}
740	}	799	}
741	}	800	}
742		801
743	next->cursp = stacklevel;	802	LOCK;
		803	if (coro_mortal)
		804	{
		805	SvREFCNT_dec (coro_mortal);
		806	coro_mortal = 0;
		807	}
		808	UNLOCK;
		809	}
		810
		811	#define SV_CORO(sv,func) \
		812	do { \
		813	if (SvROK (sv)) \
		814	sv = SvRV (sv); \
		815	\
		816	if (SvTYPE (sv) == SVt_PVHV) \
		817	{ \
		818	HE he = hv_fetch_ent ((HV )sv, ucoro_state_sv, 0, ucoro_state_hash); \
		819	\
		820	if (!he) \
		821	croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \
		822	\
		823	(sv) = SvRV (HeVAL(he)); \
		824	} \
		825	\
		826	/* must also be changed inside Coro::Cont::yield */ \
		827	if (!SvOBJECT (sv) \|\| SvSTASH (sv) != coro_state_stash) \
		828	croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \
		829	\
		830	} while(0)
		831
		832	#define SvSTATE(sv) (struct coro *)SvIV (sv)
		833
		834	static void
		835	api_transfer(pTHX_ SV prev, SV next, int flags)
		836	{
		837	SV_CORO (prev, "Coro::transfer");
		838	SV_CORO (next, "Coro::transfer");
		839
		840	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		841	}
		842
		843	/ Coro ******************************************************************/
		844
		845	#define PRIO_MAX 3
		846	#define PRIO_HIGH 1
		847	#define PRIO_NORMAL 0
		848	#define PRIO_LOW -1
		849	#define PRIO_IDLE -3
		850	#define PRIO_MIN -4
		851
		852	/* for Coro.pm */
		853	static GV coro_current, coro_idle;
		854	static AV *coro_ready[PRIO_MAX-PRIO_MIN+1];
		855	static int coro_nready;
		856
		857	static void
		858	coro_enq (pTHX_ SV *sv)
		859	{
		860	if (SvTYPE (sv) == SVt_PVHV)
		861	{
		862	SV *xprio = hv_fetch ((HV )sv, "prio", 4, 0);
		863	int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL;
		864
		865	prio = prio > PRIO_MAX ? PRIO_MAX
		866	: prio < PRIO_MIN ? PRIO_MIN
		867	: prio;
		868
		869	av_push (coro_ready [prio - PRIO_MIN], sv);
		870	coro_nready++;
		871
		872	return;
		873	}
		874
		875	croak ("Coro::ready tried to enqueue something that is not a coroutine");
		876	}
		877
		878	static SV *
		879	coro_deq (pTHX_ int min_prio)
		880	{
		881	int prio = PRIO_MAX - PRIO_MIN;
		882
		883	min_prio -= PRIO_MIN;
		884	if (min_prio < 0)
		885	min_prio = 0;
		886
		887	for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; )
		888	if (av_len (coro_ready[prio]) >= 0)
		889	{
		890	coro_nready--;
		891	return av_shift (coro_ready[prio]);
		892	}
		893
		894	return 0;
		895	}
		896
		897	static void
		898	api_ready (SV *coro)
		899	{
		900	dTHX;
		901
		902	if (SvROK (coro))
		903	coro = SvRV (coro);
		904
		905	LOCK;
		906	coro_enq (aTHX_ SvREFCNT_inc (coro));
		907	UNLOCK;
		908	}
		909
		910	static void
		911	api_schedule (void)
		912	{
		913	dTHX;
		914
		915	SV prev, next;
		916
		917	LOCK;
		918
		919	prev = SvRV (GvSV (coro_current));
		920	next = coro_deq (aTHX_ PRIO_MIN);
		921
		922	if (!next)
		923	next = SvREFCNT_inc (SvRV (GvSV (coro_idle)));
		924
		925	/* free this only after the transfer */
		926	coro_mortal = prev;
		927	SV_CORO (prev, "Coro::schedule");
		928
		929	SvRV (GvSV (coro_current)) = next;
		930
		931	SV_CORO (next, "Coro::schedule");
		932
		933	UNLOCK;
		934
		935	transfer (aTHX_ SvSTATE (prev), SvSTATE (next),
		936	TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK);
		937	}
		938
		939	static void
		940	api_cede (void)
		941	{
		942	dTHX;
		943
		944	LOCK;
		945	coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current))));
		946	UNLOCK;
		947
		948	api_schedule ();
744	}	949	}
745		950
746	MODULE = Coro::State PACKAGE = Coro::State	951	MODULE = Coro::State PACKAGE = Coro::State
747		952
748	PROTOTYPES: ENABLE	953	PROTOTYPES: ENABLE
749		954
750	BOOT:	955	BOOT:
751	{ /* {} necessary for stoopid perl-5.6.x */	956	{ /* {} necessary for stoopid perl-5.6.x */
		957	#ifdef USE_ITHREADS
		958	MUTEX_INIT (&coro_mutex);
		959	#endif
		960
752	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);	961	ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1);
753	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);	962	PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1);
754	coro_state_stash = gv_stashpv ("Coro::State", TRUE);	963	coro_state_stash = gv_stashpv ("Coro::State", TRUE);
755		964
756	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));	965	newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV));
757	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));	966	newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV));
758	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));	967	newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV));
759	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));	968	newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT));
760		969
761	if (!padlist_cache)
762	padlist_cache = newHV ();
763
764	main_mainstack = PL_mainstack;	970	main_mainstack = PL_mainstack;
		971
		972	coroapi.ver = CORO_API_VERSION;
		973	coroapi.transfer = api_transfer;
765	}	974	}
766		975
767	Coro::State	976	Coro::State
768	_newprocess(args)	977	_newprocess(args)
769	SV * args	978	SV * args
…		…
772	Coro__State coro;	981	Coro__State coro;
773		982
774	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)	983	if (!SvROK (args) \|\| SvTYPE (SvRV (args)) != SVt_PVAV)
775	croak ("Coro::State::_newprocess expects an arrayref");	984	croak ("Coro::State::_newprocess expects an arrayref");
776		985
777	New (0, coro, 1, struct coro);	986	Newz (0, coro, 1, struct coro);
778		987
779	coro->args = (AV *)SvREFCNT_inc (SvRV (args));	988	coro->args = (AV *)SvREFCNT_inc (SvRV (args));
780	coro->mainstack = 0; /* actual work is done inside transfer */	989	/coro->mainstack = 0; //actual work is done inside transfer /
781	coro->stack = 0;	990	/coro->stack = 0;/
		991
		992	/* same as JMPENV_BOOTSTRAP */
		993	/* we might be able to recycle start_env, but safe is safe */
		994	/Zero(&coro->start_env, 1, JMPENV);/
		995	coro->start_env.je_ret = -1;
		996	coro->start_env.je_mustcatch = TRUE;
782		997
783	RETVAL = coro;	998	RETVAL = coro;
784	OUTPUT:	999	OUTPUT:
785	RETVAL	1000	RETVAL
786		1001
787	void	1002	void
788	transfer(prev, next, flags = TRANSFER_SAVE_ALL \| TRANSFER_LAZY_STACK)	1003	transfer(prev, next, flags)
789	Coro::State_or_hashref prev	1004	SV *prev
790	Coro::State_or_hashref next	1005	SV *next
791	int flags	1006	int flags
792	PROTOTYPE: @	1007	PROTOTYPE: @
793	CODE:	1008	CODE:
		1009	PUTBACK;
		1010	SV_CORO (next, "Coro::transfer");
		1011	SV_CORO (prev, "Coro::transfer");
794	transfer (aTHX_ prev, next, flags);	1012	transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags);
		1013	SPAGAIN;
795		1014
796	void	1015	void
797	DESTROY(coro)	1016	DESTROY(coro)
798	Coro::State coro	1017	Coro::State coro
799	CODE:	1018	CODE:
800		1019
801	if (coro->mainstack && coro->mainstack != main_mainstack)	1020	if (coro->mainstack && coro->mainstack != main_mainstack)
802	{	1021	{
803	struct coro temp;	1022	struct coro temp;
804		1023
		1024	PUTBACK;
805	SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL);	1025	SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL);
806	LOAD(aTHX_ coro);	1026	LOAD (aTHX_ coro);
		1027	SPAGAIN;
807		1028
808	destroy_stacks (aTHX);	1029	destroy_stacks (aTHX);
809		1030
810	LOAD((&temp)); /* this will get rid of defsv etc.. */	1031	LOAD ((&temp)); /* this will get rid of defsv etc.. */
		1032	SPAGAIN;
811		1033
812	coro->mainstack = 0;	1034	coro->mainstack = 0;
813	}	1035	}
814		1036
815	deallocate_stack (coro);	1037	deallocate_stack (coro);
816		1038	SvREFCNT_dec (coro->args);
817	Safefree (coro);	1039	Safefree (coro);
818		1040
819	void	1041	void
820	flush()	1042	_exit(code)
		1043	int code
		1044	PROTOTYPE: $
821	CODE:	1045	CODE:
822	#ifdef MAY_FLUSH	1046	_exit (code);
823	flush_padlist_cache ();
824	#endif
825		1047
826	MODULE = Coro::State PACKAGE = Coro::Cont	1048	MODULE = Coro::State PACKAGE = Coro::Cont
827		1049
828	# this is slightly dirty	1050	# this is slightly dirty (should expose a c-level api)
829		1051
830	void	1052	void
831	yield(...)	1053	yield(...)
832	PROTOTYPE: @	1054	PROTOTYPE: @
833	CODE:	1055	CODE:
…		…
835	SV *sv;	1057	SV *sv;
836	AV *defav = GvAV (PL_defgv);	1058	AV *defav = GvAV (PL_defgv);
837	struct coro prev, next;	1059	struct coro prev, next;
838		1060
839	if (!returnstk)	1061	if (!returnstk)
840	returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE));	1062	returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE));
841		1063
842	/* set up @_ -- ugly */	1064	/* set up @_ -- ugly */
843	av_clear (defav);	1065	av_clear (defav);
844	av_fill (defav, items - 1);	1066	av_fill (defav, items - 1);
845	while (items--)	1067	while (items--)
846	av_store (defav, items, SvREFCNT_inc (ST(items)));	1068	av_store (defav, items, SvREFCNT_inc (ST(items)));
847		1069
848	mg_get (returnstk); /* isn't documentation wrong for mg_get? */	1070	SvGETMAGIC (returnstk); /* isn't documentation wrong for mg_get? */
849	sv = av_pop ((AV *)SvRV (returnstk));	1071	sv = av_pop ((AV *)SvRV (returnstk));
850	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));	1072	prev = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 0, 0)));
851	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));	1073	next = (struct coro )SvIV ((SV)SvRV (av_fetch ((AV )SvRV (sv), 1, 0)));
852	SvREFCNT_dec (sv);	1074	SvREFCNT_dec (sv);
853		1075
854	transfer(aTHX_ prev, next, 0);	1076	transfer (aTHX_ prev, next, 0);
855		1077
		1078	MODULE = Coro::State PACKAGE = Coro
		1079
		1080	# this is slightly dirty (should expose a c-level api)
		1081
		1082	BOOT:
		1083	{
		1084	int i;
		1085	HV *stash = gv_stashpv ("Coro", TRUE);
		1086
		1087	newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX));
		1088	newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH));
		1089	newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL));
		1090	newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW));
		1091	newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE));
		1092	newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN));
		1093
		1094	coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV);
		1095	coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV);
		1096
		1097	for (i = PRIO_MAX - PRIO_MIN + 1; i--; )
		1098	coro_ready[i] = newAV ();
		1099
		1100	{
		1101	SV *sv = perl_get_sv("Coro::API", 1);
		1102
		1103	coroapi.schedule = api_schedule;
		1104	coroapi.cede = api_cede;
		1105	coroapi.ready = api_ready;
		1106	coroapi.nready = &coro_nready;
		1107	coroapi.current = coro_current;
		1108
		1109	GCoroAPI = &coroapi;
		1110	sv_setiv(sv, (IV)&coroapi);
		1111	SvREADONLY_on(sv);
		1112	}
		1113	}
		1114
		1115	#if !PERL_MICRO
		1116
		1117	void
		1118	ready(self)
		1119	SV * self
		1120	PROTOTYPE: $
		1121	CODE:
		1122	api_ready (self);
		1123
		1124	#endif
		1125
		1126	int
		1127	nready(...)
		1128	PROTOTYPE:
		1129	CODE:
		1130	RETVAL = coro_nready;
		1131	OUTPUT:
		1132	RETVAL
		1133
		1134	void
		1135	schedule(...)
		1136	PROTOTYPE:
		1137	CODE:
		1138	api_schedule ();
		1139
		1140	void
		1141	cede(...)
		1142	PROTOTYPE:
		1143	CODE:
		1144	api_cede ();
		1145

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Comparing Coro/Coro/State.xs (file contents): Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs. Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC

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Comparing Coro/Coro/State.xs (file contents):
Revision 1.18 by root, Thu Jul 26 03:46:15 2001 UTC vs.
Revision 1.62 by root, Tue Feb 22 19:51:58 2005 UTC